Manage Elasticsearch Instance

Customize Mapping for Index

If there occur some errors during mapping it might be neccessary to customize the mapping for a specific index.

Take a Snapshot

Take a Single Snapshot as described below.

Save Current Mapping of Index

curl -X GET http://localhost:9200/YOUR_INDEX/_mapping?pretty > YOUR_INDEX_mapping.json

Clear Index

curl -X DELETE http://localhost:9200/YOUR_INDEX

Customize Saved Mapping to Your Needs

Unfortunately you have to remove the top level element (should be ‘YOUR_INDEX’) from the file. Example:

YOUR_INDEX_mapping.json:
{
 "YOUR_INDEX" : {
   "mappings" : {
     [...]
   }
 }
}
--> 
mapping.json:
{
  "mappings" : {
    [...]
  }
}

Save new file as ‘mapping.json’. If you have ‘jq’ installed this can be easily done with

cat YOUR_INDEX_mapping.json | jq .YOUR_INDEX > mapping.json

Push Mapping for Index

curl -X PUT  http://localhost:9200/YOUR_INDEX -H 'Content-Type: application/json' --data '@mapping.json'

Reindex all Entries of ‘YOUR_INDEX’

systemctl stop metaStore 
bash run.sh --reindex --indices YOUR_INDEX
[...]

Reindexing may take a while depending on the number of entries. (As the script runs not in background you should interrupt the script afte indexing has finished and start the daemon again.

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